| Code | Description | Code scheme | ||
|---|---|---|---|---|
| 43292 | Installation of fire protection and security alarm systems | Singapore Standard Industrial Classification (SSIC) 2015 | details | |
| 43210 | Electrical works | Singapore Standard Industrial Classification (SSIC) 2015 | details | |
| 41009 | Building construction n.e.c. | Singapore Standard Industrial Classification (SSIC) 2015 | details |